Object: Constellation: Coordinates: Size: Brightness:
Messier 97
(= NGC 3587)
UMa 11h15m / +55°01' 3.4' x 3.3' 9.9mag

The planetary nebula M97 ("Owl nebula") in the constellation Ursa Major on March 3/4, 2013. The Owl nebula's distance to Earth is uncertain. Depending on the source, numbers range from 400 to 12'000 light years. M97 was discovered by Pierre Méchain in 1781. Below M97, a fuzzy object can be detected. It is the galaxy PGC 34279, partly eclipsed by a foreground star (source: Wikipedia).

Eighteen 3 minute exposures at ISO 800 were added for this shot with the DeepSkyStacker software (resulting in a 55 minute exposure) and the final image processing was done in Photoshop.
Equipment: Canon EOS 450D Baader modified camera, TeleVue Universal Paracorr coma corrector, 16" f/4.5 "Ninja" dobsonian telescope riding on a dual-axis Tom Osypowski equatorial platform, Lacerta MGEN autoguider, Teleskop-Service off axis system TS-OAG9 EOS (field of view comparison: image of the moon with the same equipment).

Search chart for M 97. Map © 2013 "The Mag-7 Star Atlas Project", www.siaris.net. Map is slightly modified. The map can be downloaded here .